A fine example of the fourth volume of Joan Blaeu’s ‘Theatrum Orbis Terrarum’, covering England and Wales with fine colouring, the title beautifully illuminated in gold. Blaeu’s first topographical atlas appeared in 1630 in one volume and was gradually expanded. By 1640 it was in three volumes and contained just 4 British Isles maps. His chief rival, the Hondius-Jansson atlas contained 18 maps. Both joined a race to make their fourth volumes a complete atlas of the British Isles. Blaeu was first, publishing his magnificent work in 1645, one year before that of Jansson’s. The work of Blaeu set a standard of design, beauty and quality that arguably has never been surpassed. This is an early example dated 1648 with German text and a Royal provenance. Provenance: Johann, King of Saxony (1801-73), his crowned monogram in margin of the title; Saxon State and University Library, Dresden (deaccession stamp). Koeman (1967-70) Bl 47D pp. 183-80, 215-8; Skelton (1970) 44; Van der Krogt (1997-2010) 2.3331K, variant title a.